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Description

Beef up your BB.

The 86mm bottom bracket is a relatively new, reasonably beefier BB standard that allows frame designers a little more leeway to play around with seat tube, downtube, and chainstay designs. The new, larger shell requires a larger bracket, obviously, and Shimano designed the Dura-Ace BB86 Bottom Bracket to quite literally fill the gap. While it's a little larger than traditional BBs, the BB86 has the same design as Shimano's other Dura-Ace brackets, with steel cartridge bearings packed inside composite cups and plastic o-rings and dust shields to keep everything running smoothly. The 86 is also compatible with Shimano HollowTech cranks, so you can keep your old crankset even if you're getting a new frame.

  • Composite cups
  • Steel cartridge bearings
  • Compatible with HollowTech cranksets
  • Inner plastic o-rings and dust shields

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Shimano Dura Ace BB86 Bottom Bracket

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Here's what others have to say...

5 5

smooth and maintenance free

  • Familiarity: I've put it through the wringer

Smooth and maintenance free, isn't that what we want out of a BB? it is for my and after a summer of commuting, training, racing, I don't even have to think about it, it's always dependable.